Researching Dirty Air's Effect On Health: Are Some Texans Immune?

Maybe nowhere else is the battle over clean air fought harder than in Texas. The state has tried to block federal air pollution laws saying they stifle economic growth. But just last week, the U.S. Department of Justice filed another law suit to force power plants in northeast Texas to reduce toxic air emissions. We thought it might be a good time to look at the root of why any this matters. StateImpact reporter Dave Fehling has the basics on what air pollution can do to people.